I have various bench top power supplies, some single output, some with multiple.
The board I want to power needs 12V DC in, and two pins 0-5V DC each (so maybe 2.5V on each pin just for testing purposes - but ideally adjustable between 0V and 5V).
To simplify my question, which is something that I've been confused at for a while, how do I connect the outputs from the power supply to the circuits since the grounds on the power supply are separate?
Most likely I can't connect the grounds together, the circuits can't be powered by two separate grounds, so I'm curious whether I'm overlooking something or I just need a single supply and one (or more - depending on my needs) voltage regulators?